SQL Server 2008 Per-Installation Error with .Net Framework 3.5

Have you downloaded SP1 for .NET 3.5?
http://www.microsoft.com/downloads/details.aspx?familyid=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=en
Please review this installation spec:
http://msdn.microsoft.com/en-us/library/ms143219.aspx

Thank you for your advise. However, I have tried to install .NET Framework 3.5 SP1 and the same problem still appear. Again, any advise will be welcome.

Hello All,

I am having a similar issue related to .net 3.5. When I attempt to install SQL Server 2008 I immediately receive "Microsoft .NET Framework 3.5 Installation has failed. SQL Server 2008 Setup requires .NET Framework 3.5 to be installed.

I have attached a copy of my dd_dotnetfx35install.txt for review. We downloaded the .net 3.5 SP1 install from http://www.microsoft.com/downloads/details.aspx?familyid=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=en

We have attempted the install on PC's running XP SP2 & SP3 and still the same issue.

Any assistance is greatly appreciated.
dd-dotnetfx35install.txt

Funnily enough, I too run XP, and had no problems whatsoever - maybe because I installed VS 2008 first and it did do quite a bit of .net work, even resolve some multiply defined entry points (for .net framework) in a particular project I was having problems with. And have seen your entry on the other problem with 3.5 - have you tried / followed those suggestions (expect use the x86 version of the readiness pack) ?

The initial problem I ran into was solved by overwriting the .NET .05 install package that is located \SQL Server 2008 Enterprise Edition\x86\redist\DotNetFrameworks

Apparently the original package is corrupted. Now I run into another problem in which I uploaded the screen shot for your review.
New-Picture.bmp

Not sure - could be a size thing. I always creat an INSTALL folder in the root of what ever is the system drive, then create an appropriate subfolder (such as SQL2008) and install from there. Have run into problems before and that's why I have that installs folder now. other than that, cannot imagine why other than security maybe.

Woulod like to know of your solution - there are a few different install problems, and it might help others...

Hello Mark,

The package we were trying to install was downloaded from the MSDN website. We downloaded both the Enterprise & Developer Editions locally and tried to install. Both editions failed.

I then proceeded to download both of the trial versions for Developer and Enterprise locally and install but enter in my companies product key and NO ISSUES at all arose. Nothing of .NET 3.5 SP1 nothing at all.

It appears that the MSDN package that is being released to the public is faulty some where.

Microsoft have just released 3.5 SP1 on 18th November 2008 - http://www.microsoft.com/downloads/details.aspx?FamilyID=ab99342f-5d1a-413d-8319-81da479ab0d7&DisplayLang=en  there is also a link to the full download. Funny that it now says publish date 18/11/2008  and as hoggzilla's post proves, it was there earlier - maybe a quick fix along the way...

Try to Uninstall Visual Studio fully(Everything Including .Net). Then install Install SQL 2008 Enterprise. After that install Visual Studio.

Before you install SQL 2008 Enterprise Check Whether u have .Net 3.5, and VS 2008 SP1 installed.